1, the misunderstanding of health preservation in winter
Myth 1: licking your lips can moisturize.
When the air is dry in cold, people's lips are prone to chapping, causing discomfort, pain and bleeding. Many women like to lick their lips with their tongues, thinking that it can moisturize and comfort them, but the result is just the opposite. Because saliva is secreted by salivary glands and contains amylase and other substances, it is sticky, just like coating a layer of paste on the lips. After the water evaporates, the lips will be drier and easier to "peel off". If your lips are dry and uncomfortable, you can apply some lip balm without pigment and fragrance.
Myth 2: The more clothes you wear, the warmer you get.
In the cold season, some female friends will wear full clothes, thinking that the more they wear, the warmer they will be. This view is one-sided, because the warmth of clothes is related to the thickness of air layer inside clothes. Wearing a piece of clothing increases the thickness of the air layer and the warmth retention. However, when the total thickness of the air layer exceeds 15 mm, the air convection in the clothes increases obviously, but the warmth retention decreases. Physiologically speaking, if people wear too many clothes, the skin blood vessels will expand due to high fever, which will increase heat dissipation and reduce the body's adaptability to external temperature changes.
Myth 3: Warm your hands and feet after freezing.
Many female friends have this experience. They entered the room from the outside where the cold wind roared. What they wanted most at that time was to bake their frozen hands and feet on the heater. Although it is temporarily comfortable, this change process is very unfavorable to hands and feet-it is easy to get frostbite in the future. The correct way is to rub bare hands and feet together not far from the heater, so that the temperature of hands and feet will naturally rise. When the skin surface turns red, move it to a heater or put it in hot water to keep warm.
Myth 4: scratch itchy skin with your hands.
When it's cold, people tend to itch all over because the air is dry and the number of baths is small. At this time, you must not scratch it with your hands, otherwise it will easily scratch your skin and cause secondary infection. The general methods to prevent and cure skin itching are to drink more water, eat more fresh vegetables and fruits, eat less spicy food such as hot and sour, take a bath frequently and change underwear frequently. Those with severe itching can take chlorpheniramine, aminophenol and other drugs under the guidance of a doctor, or apply calamine lotion or ointment to treat itching.
Myth 5: Wear a mask to prevent colds.
In the cold winter, some women often wear masks when they go out, thinking that this can prevent colds and colds. In fact, this is unscientific, because people's nasal cavity and the whole respiratory tract are covered with many mucous membranes, and there are microvessels under the mucous membranes. When the nose sucks in cold air, it passes through a winding pipe and enters the lungs, and it is close to body temperature. This physiological function of the human body can be enhanced through exercise, thus improving the cold tolerance. If you wear a mask all day, the mucosa of the nasal cavity and the whole respiratory tract will not get exercise, and it is easier to catch a cold if you have a slight cold.
Myth 6: Sleeping with your head covered is the most comfortable.
On cold nights, many people like to sleep under the covers. This is neither sanitary nor comfortable. Sleeping with his head covered, in addition to the lack of oxygen, leads to dyspnea and dizziness, and the large amount of water vapor exhaled from his mouth also makes the humidity in the bed increase sharply, and the good microclimate in the bed is quickly destroyed, making him uncomfortable all over.
Medical meteorologists have found that the most comfortable bed microclimate requires a micro airflow of 0.2 meters per second. Such a small wind speed has little sense of blowing to the human body and is difficult to adjust. Generally speaking, as long as you don't wrap the quilt into a "cylindrical shape" when sleeping, there is a certain space between the quilt and the body, and there are 1 ~ 2 small gaps between the quilt under the shoulder and the quilt cover, which can basically reach the standard of "micro-airflow" that makes the human body comfortable.
2. The way to keep fit in winter
1, pH
In fact, the acidity and alkalinity of food is not determined by our taste, but related to its mineral content. So fruits usually taste sour, such as lemon and carambola, but they are all alkaline foods. Another example is rice, which has no obvious taste response and is acidic food. According to the classification of daily food, most animal foods are acidic foods, such as fish, meat and shellfish. In addition, most cereals and some nuts are also acidic foods.
2. Meat and vegetarian food
Reasonable combination of meat and vegetables can not only satisfy people's appetite, but also avoid increasing the burden on blood and heart due to eating too much animal food. Our China people's eating habits are mainly based on plant food, supplemented by animal food, which is more conducive to longevity.
3. Staple food and non-staple food
Usually, the staple food we refer to refers to rice, noodles, miscellaneous grains and so on. And non-staple food refers to meat, eggs, vegetables and other foods. Staple food and non-staple food are indispensable. Some people advocate eating more meat and less food, which is not in line with the way of health preservation. Some people want to lose weight and only eat staple food instead of non-staple food, but the result is just the opposite. Excess starch will be decomposed into glucose in the body and stored as fat. Some people think that the staple food is not nutritious, they don't eat dinner, their diet is impermanent, and snacks are constantly available. These do not meet the requirements of healthy diet.
4. Flour, rice and coarse grains
Eating coarse grains has become a new fashion in recent years. Many people like to eat coarse grains, thinking that it has high nutritional value and good taste, which is beneficial to teeth and facial muscles. However, although coarse grains are good, it is not advisable to eat more. Because it contains too much dietary fiber, it will affect the human body's absorption of protein, inorganic salts and some trace elements, and even damage the human reproductive capacity. In the daily diet, it is healthiest to control the ratio of flour and rice to coarse grains at 4: 6.
5, thin
Every meal should be lean, and some people only eat dry food in order to save trouble, which not only affects the absorption effect of the stomach, but also easily causes imbalance in the proportion of nutrients. Of course, eating thin rice is not a good habit. Nutrition experts suggest that fat people should be diluted first and then dried, while thin people should be dried first and then diluted.
6. Cold and hot
There are four kinds of food: cold, hot, warm and cold. Nutrition experts suggest a balanced diet, supplemented by heat for those who are cold and cold for those who are hot. If this balance is destroyed, it will definitely hurt the body, and maintaining this balance can prolong life.
In winter, people are easily infected with various diseases. For those office workers, they must pay more attention to their health, eat more fruits and vegetables that are beneficial to their health, and get rid of diseases as soon as possible.
These winter health care misunderstandings are actually quite common, and many people may commit them, so everyone needs to pay more attention in peacetime to avoid adverse effects on the body. Pay more attention to diet in winter, eat some warm complementary foods, and understand these correct health care methods in order to spend a more comfortable and relaxed winter!